RFR: 8231118: ARM32: Math tests failures

[boris]

Hi,

Can I ask for review again? I switched from minimal change to this one 
to fix some things around:
- corrected fstmea/fstmfd instructions encoding (actually they are not 
used anywhere)
- fstmdbd/fldmiad pseudo instructions usage replaced to fpush/fpop
- enabled my change for hardfp only
http://cr.openjdk.java.net/~bulasevich/8231118/webrev.02/jdk-jdk.patch

thanks,
Boris

On 23.01.2020 15:38, Boris Ulasevich wrote:
> Hi,
>
> Please review the fix for floating point Math functions fails 
> reproduced on ARM32 fastdebug build run on Raspbian 10. The issue is a 
> call to runtime from c2i_adapter (function arguments stays on FPU at 
> this point) without proper register saving.
>
> http://cr.openjdk.java.net/~bulasevich/8231118/webrev.01
> http://bugs.openjdk.java.net/browse/JDK-8231118
>
> thanks,
> Boris